Oil can for ejecting liquids



Sept. 9, 1930. 1.. CHASE OIL CAN FOR EJECTING LIQUIDS Original Filed-Feb. 2, 1927 -1NVENTO R. 100/5- (P/ASE Cm Y L ATTORNEY. v

Patented Sept. 9, 1930 UNIT D isTA E 7 Louis CHASE, or ATLANTIC, MASSACHUSETTS OIL (anon EJEC'IING mourns 1 Application nled lebruary 2, 1927; Serial This invention relates to a novel and im proved force-feed, hand-operated dispensing device for dispensing liquids such as oil; The invention will be bestunderstood by 5 reference to thefollowing description, when taken in connection withvthe accompanying drawings'ofone specific embodiment thereof,zwhile its scope will be more particularly pointed-out in the appended claims. In the drawings:

Fig. 1 is an elevation of a dispensing device exemplitying the invention, partly broken away and partly in vertical section the better to illustrate the invention; Fig. 2is a bottom plan of the device with the lower part removed; and h 1 Fig.3 isa vertical, sectional view, illustrating a modification of the spring which- 1 tends-to move one of the telescopically arranged parts other; e 1 V 1 Referring to the drawings, and to the embodiment of the invention which is illustrated therein, there is shown a dispensing outwardly with relation to the device 10, comprising an outer, cup-like cylinder111, and an inner,inverted cup-like piston"r15, telescopically arranged within said cylinder and having a reasonably snug working fit therein.- The cylinder and the piston together constitute areservoir for the liquid to be dispensed. The piston presents a nozzlei17, throughwhich the liquid is dispensed from the reservoir. 1 I i The'cylinder and piston areprovided with i cooperative means normally to limit outward mov'ementof the piston relatively to the cylinder, said means, intheipresent example, comprising an annular shoulder 13formed on onejpart, herein the cylinder, engagedby 40 one or more, herein three appropriate detentsor stops 20, which arelaterally displaceable from the shoulder to permit complete withdrawal of the piston when the reservoir 1 is to be refilled. In the present embodiment, these detents 0r stops are resiliently mount- No. 165,481. Renewed amu in ed; so that t y are P a w mile" Appropriate resilient means are pro videdf'iw tendlng to thrust thepiston; outwardly from the cylinder and yieldingly to resistinward movement of the piston, saidmeans being in the form of one or more springs hherein three 1 springs 21 (seegFig. 1),or springs 18%(see so I Flg. 3)," conveniently formed as integral parts of the detents 2O andsprings18,and adapted to rest upon the bottom 14of the reservoir 11. .Inthe'form shown in Figs. 1 and 2, each spring has an outwardlydirectedj free end 22, while in the formshown in Fig;

3; the ends of the, springs 18f'flare inwardly directed; In any case, the outward thrust of the springforsprings normally is resistedj by the cooperative action of the detents or 1 stops "20 andsthe shoulder 13. oaths other hand, when the operator squeezesthe'cylim der and piston, one toward the other, toexpel liquid from the reservoir through the nozzle, the springs yield: Inward movementof the piston relatively to the cylinder is? conven iently limited by providing the pistonwith aj laterally projecting annular flangefor bead 16;which strikes the upperedge of thee linder. This bead also strengthens the'plston" and resists deformation of the same; it also forms a convenient shoulder for engagement withthe fingers, to prevent the device from slipping-"through the fingers, which'may be wet withoil or other liquid. Furthermore, the shoulder may be availed of to rest inor upon an appropriate support. V

I To catch and retain liquid, and to prevent the same fromru-nning downabout theouter surface of the cylinder, the piston and cylinpushed against the springs until the detents' or stops snap into place beneath the annular shoulder. V 7,

Having thus described one embodiment of the invention, but without limiting myself thereto, what I claim and desire by Letters Patent to secure is:

1. In a forced-feed, hand-operated dispensing device, the combination of two telescopically arranged parts constituting a reservoirfor the liquid to be dispensed, anozzle through which the liquid is dispensed from said reservoir, and means normally to limit outward movement of one of said parts relatively to the other, said means having provision to permit separation of said parts for the filling of said reservoir by merely moving one of said parts relatively to the other.

2. In a force-feed, hand-operated dispens ing device, the combination of two telescopically arranged parts constituting a reservoir for the liquid to be dispensed, a nozzle through which the liquid is dispensed from said reservoir, and spring detent means normally to limit outward movement of one of said parts relatively to the other, and adapted to yield to permit complete withdrawal of one of said parts from the other.

3. In a force-feed, hand-operated dispensing device, the combination of two telescopically arranged parts constituting a reservoir for the liquid to be dispensed, a nozzle through which the liquid is dispensed from said reservoir, one of said parts presenting a shoulder, limiting means carried by the other of said parts to cooperate with said shoulder to limit outward movement of one of said parts relatively to the other, said limiting means being movable laterally with relation to said shoulder into and out of cooperation with the latter in a direction transverse to said movement, and resilient means tending to maintain said limiting means in engagement with said shoulder.

4:. In a force-feed, hand-operated dispensing device, the combination of two telescopically arranged parts constituting a reservoir for the liquid to be dispensed, a nozzle through which the liquid is dispensed from said reservoir, cooperating means on said parts normally to limit outward movement of one of said parts relatively to the other, said cooperating means being relatively movable into and out of engagement with each other in a direction transverse to said movement, and resilient means tending to move one of said parts outwardly with relation to the other.

5. In a force-feed, hand-operated dispensing device, the combination of two telescopically arranged parts constituting a reservoir for the liquid to be dispensed, a nozzle through which the liquid is dispensed from said reservoir, cooperating means on said parts normally to limit outward movement of one ofsaid parts relatively to the other, said means having provision at will to permit complete withdrawal of one of said parts from the other, and resilient means tending to move one of said parts outwardly with relation to the other:

6. Ina force-feed, hand-operated dispensing device, the combination of two telescopically arranged parts constituting a reservoir for the liquid to be dispensed, a nozzle through which the liquid is dispensed from said reservoir, one of said parts being provided with an annular shoulder, and means carried by the other part for engagement with said shoulder to limit outward movement of one of said parts relatively to the other, said means being'movable transversely of said movement into and out ofengagement with said shoulder.

7. In a force-feed, hand-operated dispensing device, the combination of two telescopically arranged parts constituting areservoir for the liquid to be dispensed, a nozzle through which the liquid is dispensed from said reservoir, one of said parts being provided with an annular shoulder, and laterally displaceable means carried by the other part for engagement with said shoulder to limit outward movement of one of said parts relatively to the other, said means, when displaced laterally from said. shoulder permitting further outward movement of one of said parts relatively to the other.

8. In a force-feed, hand-operated dispensing device, the combination of two telescopically arranged parts constituting areservoir for the liquid to be dispensed, a nozzle through which the liquid is dispensed from 2 said reservoir, one of said parts being provided with an annular shoulder, and resilient, laterally displaceable means carried by the other part for engagement with said'shoulder to limit outward movement of one of said parts relatively to the other, said means being laterally displaceable by said shoulder upon the application of sufiicient force in an outward direction of one of said parts relatively to the other.

9. In a force-feed, hand-operated dispensing device, the combination of two telescopically arranged parts constituting a reservoir forthe liquidto be dispensed, one of said parts having a reduced portion which,

together with the other part, is adapted to form a liquid-receiving groove open at the top to receive liquid when one of said parts is displaced inwardly relatively to the other.

10. In a forcefeed, hand-operated dispensing device, the combination of two telescopically arranged parts constituting a reservoir for the liquid to be dispensed, the innor part having a reduced portion which, to-

gether with. the outer part, is adapted to form a liquid-receiving groove open at the top to receive liquid when one of said parts is displaced inwardly relatively to the other.

In testimony whereof I have aflixed my signature;

LOUIS CHASE. 

